package com.example.publice.quartz;

import com.example.admin.entity.SysJob;
import com.example.admin.entity.SysJobLog;
import com.example.util.str.StringUtils;
import org.apache.commons.beanutils.BeanUtils;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;

public abstract class AbstractQuartzJob implements Job {


    private static final Logger log = LoggerFactory.getLogger(AbstractQuartzJob.class);

    /**
     * 线程本地变量
     */
    private static ThreadLocal<Date> threadLocal = new ThreadLocal<>();

    @Override
    public void execute(JobExecutionContext context) {
        SysJob sysJob = new SysJob();
        try {
            BeanUtils.copyProperties(sysJob, context.getMergedJobDataMap().get(ScheduleConstants.TASK_PROPERTIES));
            before(context, sysJob);
            if (sysJob != null) {
                doExecute(context, sysJob);
            }
            after(context, sysJob, null);
        } catch (Exception e) {
            log.error("任务执行异常  - ：", e);
            after(context, sysJob, e);
        }
    }

    /**
     * 执行前
     *
     * @param context 工作执行上下文对象
     * @param sysJob  系统计划任务
     */
    protected void before(JobExecutionContext context, SysJob sysJob) {
        threadLocal.set(new Date());
    }

    /**
     * 执行后
     *
     * @param context 工作执行上下文对象
     * @param sysJob  系统计划任务
     */
    protected void after(JobExecutionContext context, SysJob sysJob, Exception e) {
        Date startTime = threadLocal.get();
        threadLocal.remove();
        final SysJobLog sysJobLog = new SysJobLog();
        sysJobLog.setJobName(sysJob.getJobName());
        sysJobLog.setJobGroup(sysJob.getJobGroup());
        sysJobLog.setInvokeTarget(sysJob.getInvokeTarget());
        long runMs = new Date().getTime() - startTime.getTime();
        sysJobLog.setJobMessage(sysJobLog.getJobName() + " 总共耗时：" + runMs + "毫秒");
        if (e != null) {
            sysJobLog.setStatus(ScheduleConstants.FAIL);
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw, true));
            String errorMsg = StringUtils.substring(sw.toString(), 0, 2000);
            sysJobLog.setExceptionInfo(errorMsg);
        } else {
            sysJobLog.setStatus(ScheduleConstants.SUCCESS);
        }
        sysJobLog.setCreateTime(new Date());
        // 写入数据库当中
        sysJobLog.insert();
    }

    /**
     * 执行方法，由子类重载
     *
     * @param context 工作执行上下文对象
     * @param sysJob  系统计划任务
     * @throws Exception 执行过程中的异常
     */
    protected abstract void doExecute(JobExecutionContext context, SysJob sysJob) throws Exception;


}
